Question

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Answer 1

Răspuns:

Explicație pas cu pas:

94+x=100

x=100-94

x=6

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y:17 =6

y= 17*6

y= 102

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A= 43+3*6+3*102

A= 43+18+306

A= 367

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56-28:( x+2) =54

28:(x+2) =56-54

28:(x+2)=2

x+2=28:2

x+2=14

x= 14-2

x=12

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(38+y)*3=168

38+y= 168:3

38+y= 56

y= 56-38

y= 18

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B= [ 153-5*( 18+12)

B= 153- 5*30

B= 153-150

B=3

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28*(x+235)=6.860

x+235= 6.860 :28

x+235 = 245

x= 245-235

x= 10

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y-37=13

y= 13+37

y= 50

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C= 300 - ( 5*50-3*10)

C= 300- (250-30)

C= 300- 220

C=80